[Java] Unzip 코드(TEST) java

 

 

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Unzip 관련 작업했을 때 사용했던 테스트 코드입니다.

파일 이름과 경로 부분은 개인적으로 바꿔가며 테스트해 볼 수 있습니다.

package lusotdpot;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream;
import org.terracotta.agent.repkg.de.schlichtherle.io.FileInputStream;


public class ZipTest {

    public static void main(String[] args) throws FileNotFoundException {
        // TODO Auto-generated method stub

        //FileInputStream fis = new FileInputStream(new File("...zip"));
        File file = new File("...zip");

        ZipTest.unzip(getByteArray(file));
    }

    public static ByteArrayInputStream getByteArray(File file) throws FileNotFoundException {
        
        FileInputStream fis = new FileInputStream(file);
        //System.out.println(file.exists() + "!!");
        //InputStream in = resource.openStream();
        
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte[] buf = new byte[1024];
        try {
            for (int readNum; (readNum = fis.read(buf)) != -1;) {
                bos.write(buf, 0, readNum); //no doubt here is 0
                //Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
                System.out.println("read " + readNum + " bytes,");
            }
        } catch (IOException ex) {
//            Logger.getLogger(genJpeg.class.getName()).log(Level.SEVERE, null, ex);
        }
        byte[] bytes = bos.toByteArray();

        return new ByteArrayInputStream(bytes);
    }

    // 2018.04.04 - dwhwang 추가
     public static String unzip(ByteArrayInputStream is) {
         
         FileOutputStream fileOutputStream = null;
         ZipArchiveInputStream zipInputStream = null;

         String storePath = null;
         File folder = null;
         File newFile = null;

         try {
             storePath = "...";

             folder = new File(storePath);
             if(!folder.exists()){
                 folder.mkdirs();
             }

             zipInputStream = new ZipArchiveInputStream(is);
             ZipArchiveEntry zipEntry = null;

             while ((zipEntry = zipInputStream.getNextZipEntry()) != null) {
                 newFile = new File(storePath + File.separator + zipEntry.getName());
                 fileOutputStream = new FileOutputStream(newFile);

                 int length = 0;
                 while ((length = zipInputStream.read()) != -1) {
                     fileOutputStream.write(length);
                 }
                 //zipInputStream.closeEntry();
                 fileOutputStream.flush();
                 fileOutputStream.close();
             }
             zipInputStream.close();
         } catch (Exception e) {
             // Exception Handling
             e.printStackTrace();
         } finally {
             try {
                 //zipInputStream.closeEntry();
                 fileOutputStream.flush();
                 fileOutputStream.close();
                 zipInputStream.close();
             } catch (IOException e) {
                 // Exception Handling
             }
         }

         return storePath;
     }

}

 

 

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